Making Header Image Click-able

I know this question has been asked umpteen number of times before, but I'm not being able to figure out a way to make my header image link back to my main page. I don't like the "Back to Home Page" Widget very much.

I removed the blog title and the description from the style sheet because they looked plain ugly with the rest of the design

Basically, what I've done here is removed the blog description by setting it to display:none; (like I did before). Next, the color of "blog-title" and "blog-title a" have been set as the body background color (which was #fff for me). This doesn't really matter because what I do is-push off the blog title text off the page by setting the top to -30px. I also gave the blog title-a width and height values- same as the custom header size. That's it! Fairly simple. :)